X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details 16% (W/V) PEG 4000, 0.2 M ZINC ACETATE AND 0.1 M CACODYLATE BUFFER, PH 6.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 159.17 α = 90
b = 159.17 β = 90
c = 114.27 γ = 120
Symmetry
Space Group P 31 1 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU -- 1995-08
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.15 100 83.6 0.07 0.07 -- 1.7 -- 73216 -- 0.0 12.8
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.15 2.9 65.4 0.4 0.4 -- 1.2 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.15 100.0 -- 0.0 -- 74993 7526 83.7 -- 0.222 0.222 0.242 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.15 2.23 -- 611 5481 0.306 0.333 0.013 68.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 24.9
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.8
x_scbond_it 2.84
x_bond_d 0.016
x_improper_angle_d 1.81
x_dihedral_angle_d 22.8
x_mcbond_it 1.39
x_mcangle_it 2.22
x_scangle_it 4.34
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.27
Luzzati Sigma A (Observed) 0.31
Luzzati Resolution Cutoff (Low) 100.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.32
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2922
Nucleic Acid Atoms 0
Heterogen Atoms 49
Solvent Atoms 450

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
X-PLOR model building version: 3.851
X-PLOR refinement version: 3.851
X-PLOR phasing version: 3.851